What is an inexpensive/free app to gather and aggregate devic uptimes - SNMP

This is a discussion on What is an inexpensive/free app to gather and aggregate devic uptimes - SNMP ; Hello:
We are looking for a simple program or script that will measure a
device's uptime via ping or snmp. Then..we would like to take the
individual uptimes and roll them up into a "grouping" to determine
the uptime based ...

What is an inexpensive/free app to gather and aggregate devic uptimes

Hello:

We are looking for a simple program or script that will measure a
device's uptime via ping or snmp. Then..we would like to take the
individual uptimes and roll them up into a "grouping" to determine
the uptime based upon that grouping